6X0A | pdb_00006x0a

X-ray structure of a chimeric ParDE toxin-antitoxin complex from Mesorhizobium opportunistum


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AA [auth i]ParD_1e6x0ai1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
BA [auth j]ParD_1e6x0aj1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
CA [auth k]ParD_1e6x0ak1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
DA [auth l]ParD_1e6x0al1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
EA [auth m]ParD_1e6x0am1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
FA [auth n]ParD_1e6x0an1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
IA [auth q]ParD_1e6x0aq1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
S [auth a]ParD_1e6x0aa1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
T [auth b]ParD_1e6x0ab1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
Y [auth g]ParD_1e6x0ag1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
Z [auth h]ParD_1e6x0ah1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
X [auth f]ParD_1e6x0af1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
W [auth e]ParD_1e6x0ae1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
V [auth d]ParD_1e6x0ad1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
U [auth c]ParD_1e6x0ac1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
JA [auth r]ParD_1e6x0ar1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
HA [auth p]ParD_1e6x0ap1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
GA [auth o]ParD_1e6x0ao1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: ParD_1ECOD (1.6)
CParE_toxine6x0aC1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
DParE_toxine6x0aD1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
EParE_toxine6x0aE1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
FParE_toxine6x0aF1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
JParE_toxine6x0aJ1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
KParE_toxine6x0aK1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
LParE_toxine6x0aL1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
MParE_toxine6x0aM1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
NParE_toxine6x0aN1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
OParE_toxine6x0aO1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
PParE_toxine6x0aP1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
QParE_toxine6x0aQ1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
RParE_toxine6x0aR1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
IParE_toxine6x0aI1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
HParE_toxine6x0aH1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
GParE_toxine6x0aG1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
BParE_toxine6x0aB1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)
AParE_toxine6x0aA1 A: a+b two layersX: RelE-likeH: RelE-like (From Topology)T: RelE-likeF: ParE_toxinECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D, E
PF03693Bacterial antitoxin of ParD toxin-antitoxin type II system and RHH (ParD_antitoxin)Bacterial antitoxin of ParD toxin-antitoxin type II system and RHHParD is the antitoxin of a bacterial toxin-antitoxin gene pair. The cognate toxin is ParE in, Pfam:PF05016. The family contains several related antitoxins from Cyanobacteria, Proteobacteria and Actinobacteria. Antitoxins of this class carry an N-ter ...ParD is the antitoxin of a bacterial toxin-antitoxin gene pair. The cognate toxin is ParE in, Pfam:PF05016. The family contains several related antitoxins from Cyanobacteria, Proteobacteria and Actinobacteria. Antitoxins of this class carry an N-terminal ribbon-helix-helix domain, RHH, that is highly conserved across all type II bacterial antitoxins, which dimerises with the RHH domain of a second VapB molecule. A hinge section follows the RHH, with an additional pair of flexible alpha helices at the C-terminus. This C-terminus is the toxin-binding region of the dimer, and so is specific to the cognate toxin, whereas the RHH domain has the specific function of lying across the RNA-binding groove of the toxin dimer and inactivating the active-site - a more general function of all type II antitoxins.
Domain
A, B, C, D, E
PF05016ParE toxin of type II toxin-antitoxin system, parDE (ParE_toxin)ParE toxin of type II toxin-antitoxin system, parDEParE is the toxin family of a type II toxin-antitoxin family. It is toxic towards DNA gyrase, but is neutralised by the antitoxin ParD. The family also encompasses RelE/ParE described in [2]. Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Putative addiction module antidote protein, CopG/Arc/MetJ family chimera- -
A, B, C, D, E
Plasmid stabilization system- - -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR022789Antitoxin ParDFamily
IPR038296Antitoxin ParD superfamilyHomologous Superfamily
IPR010985Ribbon-helix-helixHomologous Superfamily
IPR022789Antitoxin ParDFamily
IPR038296Antitoxin ParD superfamilyHomologous Superfamily
IPR010985Ribbon-helix-helixHomologous Superfamily
A, B, C, D, E
IPR007712Toxin-antitoxin system, RelE/ParE toxin familyFamily
A, B, C, D, E
IPR051803Type II TA system RelE-like toxinFamily
A, B, C, D, E
IPR035093Toxin-antitoxin system, RelE/ParE toxin domain superfamilyHomologous Superfamily